The Hereford Groundwater/Crossley Farm site is located approximately 7 miles southwest of Allentown, Pennsylvania. The site is located along the southern side of Huffs Church Road, approximately 3 miles west-northwest of State Route 100 and northwest of the borough of Bally.From the mid-1960s to the mid-1970s, a local plant reportedly sent numerous drums to the Crossley Farm for disposal. These drums contained mostly liquid waste and were described as having a distinctive "solvent" odor. The plant was believed to have used trichloroethene (TCE) as a degreaser from at least the mid-1960s until 1973 and tetrachloroethene (PCE) from at least the early 1960s until 1980. Known and alleged waste disposal areas include a household dump, the quarry, and a borrow pit area. All of these are suspected source areas and are being investigated.Regulatory involvement at this site began in 1983, when local residents complained to the state environmental department about odors in private water supply wells. Sampling revealed that the wells were contaminated with TCE and a health advisory followed. This advisory brought more questions about the site from local residents and more sampling led to an emergency response in late 1986. At that time, carbon filtration units were installed on the most impacted wells. A few years later, investigations, installation, and sampling of on-site and off-site monitoring wells were initiated. The site was placed on the National Priorities List (NPL) in the fall of 1992.

Remedy:

This interim remedy will provide point of entry treatment systems to the residents who are impacted by contamination from the site and provide the potential for additional residential point of entry systems if needed in the area of the site. The filter treatment units will be maintained and residential wells would be periodically monitored. Water pumped from the private wells would be passed through the treatment systems at the point of entry into the homes. Depending on the contaminants identified at specific residences, additional treatment components may be required.

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